[INFO] cloning repository https://github.com/gavrie/miniraft
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gavrie/miniraft" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgavrie%2Fminiraft", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgavrie%2Fminiraft'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c461b86512fdc8f4b5c81b27dc316d7919155b17
[INFO] checking gavrie/miniraft against try#0ab79c4b48ad19260fa46623f452c1b403a360e8 for pr-74315
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgavrie%2Fminiraft" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gavrie/miniraft on toolchain 0ab79c4b48ad19260fa46623f452c1b403a360e8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gavrie/miniraft
[INFO] finished tweaking git repo https://github.com/gavrie/miniraft
[INFO] tweaked toml for git repo https://github.com/gavrie/miniraft written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/gavrie/miniraft already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0fbf9fed2aa60dbcff2af552b9814993847bb469b00cb6e06c4b2be224a72b76
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0fbf9fed2aa60dbcff2af552b9814993847bb469b00cb6e06c4b2be224a72b76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fbf9fed2aa60dbcff2af552b9814993847bb469b00cb6e06c4b2be224a72b76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fbf9fed2aa60dbcff2af552b9814993847bb469b00cb6e06c4b2be224a72b76", kill_on_drop: false }`
[INFO] [stdout] 0fbf9fed2aa60dbcff2af552b9814993847bb469b00cb6e06c4b2be224a72b76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 92f34f54ba3aebc9c174670a5ca4b4e12f809bf5f7dbc7760bc40f0b29349034
[INFO] running `Command { std: "docker" "start" "-a" "92f34f54ba3aebc9c174670a5ca4b4e12f809bf5f7dbc7760bc40f0b29349034", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.46
[INFO] [stderr]    Compiling autocfg v0.1.1
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]     Checking regex-syntax v0.6.4
[INFO] [stderr]     Checking smallvec v0.6.7
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.3
[INFO] [stderr]     Checking rand_os v0.1.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]     Checking crossbeam-channel v0.3.6
[INFO] [stderr]     Checking env_logger v0.6.0
[INFO] [stderr]     Checking miniraft v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `RequestVoteResponse`
[INFO] [stdout]  --> src/miniraft/rpc.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     RequestVoteResponse(RequestVoteResults),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AppendEntriesRequest`
[INFO] [stdout]   --> src/miniraft/rpc.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     AppendEntriesRequest(AppendEntriesArguments),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AppendEntriesResponse`
[INFO] [stdout]   --> src/miniraft/rpc.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     AppendEntriesResponse(AppendEntriesResults),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Leader`
[INFO] [stdout]   --> src/miniraft/server.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Leader(VolatileDataForLeader),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RequestVoteResponse`
[INFO] [stdout]  --> src/miniraft/rpc.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     RequestVoteResponse(RequestVoteResults),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AppendEntriesRequest`
[INFO] [stdout]   --> src/miniraft/rpc.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     AppendEntriesRequest(AppendEntriesArguments),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AppendEntriesResponse`
[INFO] [stdout]   --> src/miniraft/rpc.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     AppendEntriesResponse(AppendEntriesResults),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Leader`
[INFO] [stdout]   --> src/miniraft/server.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Leader(VolatileDataForLeader),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.29s
[INFO] running `Command { std: "docker" "inspect" "92f34f54ba3aebc9c174670a5ca4b4e12f809bf5f7dbc7760bc40f0b29349034", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92f34f54ba3aebc9c174670a5ca4b4e12f809bf5f7dbc7760bc40f0b29349034", kill_on_drop: false }`
[INFO] [stdout] 92f34f54ba3aebc9c174670a5ca4b4e12f809bf5f7dbc7760bc40f0b29349034